Gemfile in sidekiq_prometheus-1.8.2 vs Gemfile in sidekiq_prometheus-1.8.3

@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
-source 'https://rubygems.org'
+source "https://rubygems.org"
 
 git_source(:github) { |repo_name| "https://github.com/#{repo_name}" }
 
 # Specify your gem's dependencies in sidekiq_prometheus.gemspec
 gemspec